State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China.
State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China.
Bioresour Technol. 2018 Dec;270:189-197. doi: 10.1016/j.biortech.2018.09.031. Epub 2018 Sep 8.
The pyrolysis behavior of Chinese chestnut and Jatropha curcas shells (CNS and JCS, respectively) were investigated to determine the optimum operating temperature for biomass pyrolytic polygeneration systems. At low temperatures (250-450 °C), CO was the main component of the pyrolytic gas, and high acidity oil was obtained. When the temperature increased to 550-650 °C, phenol-enriched oil and high LHV biochar (∼26 MJ/kg) were obtained; H and CO yields increased. At high temperatures (750-950 °C), heavy-oil and high LHV pyrolytic gas (∼15 MJ/m) were obtained. Meanwhile, the biochar showed a highly condensed aromatic ring system and low H/C (∼0.1) and O/C (∼0.05) ratios. CNS and JCS biochars showed different tendencies with regard to their structure evolution. An economic analysis was performed, which suggested that the optimum operating temperatures were 450 °C for CNS and 350 °C for JCS.
研究了板栗壳和麻疯树果壳（分别简称 CNS 和 JCS）的热解行为，以确定生物质热解多联产系统的最佳操作温度。在低温（250-450°C）下，CO 是热解气的主要成分，得到了高酸度油。当温度升高到 550-650°C 时，得到了富含苯酚的油和高热值生物炭（约 26 MJ/kg）；H 和 CO 的产率增加。在高温（750-950°C）下，得到了重油和高热值热解气（约 15 MJ/m）。同时，生物炭表现出高度稠合的芳环系统，以及低 H/C（约 0.1）和 O/C（约 0.05）比值。CNS 和 JCS 生物炭在结构演化方面表现出不同的趋势。进行了经济分析，结果表明 CNS 的最佳操作温度为 450°C，而 JCS 的最佳操作温度为 350°C。
